Safety water-gage



` R. STRETCH.

SAFETY WATER GAGE.

(No Model.)

Patentdr Nov. 2 1886.

l 0 ,ii a W @Ma f l' lllll lllllll UNITED 'STATES PATENT 1 OFFICE.

ROBERT STRETCH,` OF CHICAGO, ILLINOIS.

SAFETY WATER-GAGE.

SPECIFICATION formingpart of Letters Patent N. 351,814, dated November 2, 1886. Application tiled June 1, 1886. Serial No. 263,731. (No model.)

To all whom it may concern.: p Beit known that I, ROBERT STRETCH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, 5 have invented certain new and useful Improvements in Steam and Vater Gages, of which the following is a full and clear description.l

My invention relates to that class of steam and water gages by which the height of water in a boiler to which the gage is attached is indicated iu the glass tube forming a part of the gage; and the object of 'my invention is to obltain a sensitive gage, in which the water will have a comparatively straight way into the glass tube forming a part of the gage, and the liability of the gage to become stopped or Yclogged by foreign substances in the water 4largely overcome, thus insuring an accurate register in the gage of. the height ofwater in the boiler. The manner in which these results is obtained by the direct action of the mechanism employed by me in the construction of myirnproved steam and water gage is, ashereinafter described,and illustrated by the drawings accompanyingthis specification and forming a part hereof, as follows:

Figure l is a side elevation of the device, partly in section. Fig. 2 is a viewfwholly in section, showing the cock in a different position.

Like letters refer to like the several views.

X'is an ordinary glass steam and water gage tube.

A is a. coupling, connected at the lower end thereof with the boiler by suitable pipe, at the opposite end thereof connected with glass tube X, having hollow extension A on one side thereof, and having placed therein the stop-cock controlling the passage of water through said coupling.

a a is the main way or hole through coupling A.

a is the way through extension A of the coupling. Ways a a and a are opened or closed by stop-cock E.

a is a way through coupling A into or toward the center thereof, forming a blow-off or 5o drip-way for the glass tube X.

parts throughout `B is a coupling placed on the upper end of glass tube X, having a connection with astearnf pipe from'the boiler, and also connected with pipe C. y

C is a pipe extending from coupling B- to extension A of coupling A. v

.D is a valve seated in the upper-portion of coupling B, as illustrated .in Fig. l.

d is a lever turuingou fulcrum d and placed in extension A ofcoupling A'. Lever d is con- 6c nected by a tooth with the stop-cock in coupling Ain such a manner that the turning of said stop-cock raises and depresses it, and rod d" is so connected with lever d a-nd valve D as to open and close the valve by the move- A ment ot' the lever d and stop-cock E.

E is a stop-cock placed in coupling A and operated by handle F. e e are ways through stop-cock E. eis also a Way through stop-cock E, communicating 7o with way e. The tooth on lever d lits loosely in way e of stop-cock E, so that water may enter extension A through the waye' when the stop-cock E is in proper position to .admit water thereto from coupling A. Connection is made from the lower end of couplingA to a suitable place iu said boiler, to permit water from the boiler toente'r or be forced into the coupling, and coupling B is connected with the boi-ler ata place in said boiler, allowing steam to enter the coupling therefrom.

The manner in which my improved steam and water gage operates is: Connections having been made'with the boiler, and the stopcock E being'in the position illustrated in Fig. l, water from the boiler enters coupling A through lower way, a, as far as the stop-cock, and steam from the boiler enters coupling B as .far as valve D. Stop-cook E is then turned to the position illustrated in Fig. 2,.and way a a in coupling A, in conjunction with ways e e in the stop-cock, forms a continuous straight way through coupling Aand stop-cock E. By the movement of the stop-cock E lever d is raised and valve D opened by connecting-rod While stop cock E is in this position water from the boiler enters coupling A,passes through the coupling 'into tube X, and also through way e into hollow or way c in eXtension A of the coupling A, and thence rises in tube C to or about the height ofthe water in tube X. At the same time steam enters coupling B through valve D, and passes through the coupling and rests upon the water in tube X and pipe C. When stopcock E is again turned in position illustrated in Fig. l, the water from the boiler is cut olic by the stopcock shortly before Valve D is closed against the admission of steam in coupling B, and way e being opposite way c, the Water in tube X and pipe C is thus blown out through Way a by said steam. The further turning of the stop-cock completely closes valve D, and both steam and water are thus eut off.

Matter in this application shown and shown and claimedinapplicationNo. 201,901 is here by disclaimed.

Having thus described my invention and its method of operation, what I claim, and desire to secure by Letters Patent, is

l. In a steam and water gage, a coupling having a stop-cock placed therein, with Ways in said coupling and stop-cock, fo1ming,\vhen open, a straight way for the passage of water into one end of the glass tube used in said gage, in combination with a coupling placed at the upper end of the glass tube and connected by said tube and by a pipe withthe irst-named coupling, a valve placed in said upper coupling connected to and operated by a lever, and said lever actuated by the said stop-cock, all substantially as described, and for the purpose set forth.

2. In a steam and water gage, the combination of coupling A, having ways (La, af, and a, with stop-cock E, having ways e e and e', coupling B, valve D, connecting rod d, and lever el, all substantially as described, and for the purpose set forth.

ROBERT STRETCH.

Vitiiesses:

FLORA L. BROWN, CHARLES T. BROWN. 

